Hundreds attend vigils for Aurora shooting victims

Mourners at a vigil near theater where 12 people were killed July 20, 2012 in Aurora, Colo.

Don Emmert / AFP - Getty Images

M. Alex Johnson and Pete Williams, NBC News reports: A graduate student's attack in a sold-out theater near Denver showing the new Batman movie, in which 12 people were killed early Friday, was the culmination of two months of meticulous planning that included a potentially deadly booby trap left in the suspect's home for investigators, authorities said.

Fifty-eight other people were injured, many of them seriously, in the shootings shortly after midnight at the Century 16 Movie Theaters complex in Aurora, Colo. Earlier reports had said 59 people were injured, but police revised that number at a news conference Friday night. All but a small handful of the injured had been shot, Police Chief Dan Oates said. Continue reading the full story.